Riffraff Diesel 6637 7.3L Intake Filter Kit
This kit contains:
- Riffraff Diesel 6637 Filter
- Optional AFe Big Boost washable, or a Donaldson Blue® Filters
- Custom "Riffraff Diesel" Pre-filter Cover (Optional $29)
- Filter Adapter Tube
- 94-Early 99 Uses a 45* Tube
- Late 99-03 Uses a straight Tube
- SS T-Bolt Clamp
Late 1999-2003 Powerstroke production date 12-7-1998 and after
475 Reviews Hide Reviews Show Reviews
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AFE BIG BOOST !!!!!!
Totally worth it and noticed instant performance after quick install only took 20 min at best.
7.3 Can really breathe well now.
2001 F350 7.3 CC LB -
Great product
Noticed a big improvement on the aceleration!
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Money well spent
Huge improvement over stock airbox. This kit is high quality, fits nicely between the battery and the fuse box on an early 99 and is definitely flowing alot more air than stock.
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Great for the price
Very happy with the kit, easy to
Install and everything fits well. Like mentioned before it would be nice to have a bracket that supports the filter but still works well!!! -
Great product, easy to install
Worked out very well and the improvement in throttle response is worth every penny.
Filter is a bit too large to avoid hitting the hood when closed but not a huge deal. -
Best Ever
One of the best improvements I have done to my F350. Fit very well and easy to install.
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quality as always
Everything you need for the 6637 mod and nothing you don't. Quality product, looks great under the hood, spools the turbo and let's the truck breathe way better. LOVE IT. Quick shipping good price, couldn't be happier.
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Best Investment yet!
I have invested a lot into my 7.3 powerstroke over the years and this is without a doubt the best bang for the buck. Riffraff also is grade A when it come to service and shipping.
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easy install great product
Comes with the baldwin filter better than the napa filter easy install and turbo boost went up a few psi at cruising speeds
